feat: 添加RemoveDruidAdConfig以移除Druid广告

eladmin-common/src/main/java/me/zhengjie/config/RemoveDruidAdConfig.java

@@ -0,0 +1,78 @@
+package me.zhengjie.config;
+
+import com.alibaba.druid.spring.boot.autoconfigure.DruidDataSourceAutoConfigure;
+import com.alibaba.druid.spring.boot.autoconfigure.properties.DruidStatProperties;
+import com.alibaba.druid.util.Utils;
+import org.springframework.boot.autoconfigure.AutoConfigureAfter;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
+import org.springframework.boot.web.servlet.FilterRegistrationBean;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+import javax.servlet.*;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+
+/**
+ * @author Zheng Jie
+ * @description
+ * @date 2025-01-11
+ **/
+@Configuration
+@SuppressWarnings("all")
+@ConditionalOnWebApplication
+@AutoConfigureAfter(DruidDataSourceAutoConfigure.class)
+@ConditionalOnProperty(name = "spring.datasource.druid.stat-view-servlet.enabled",
+        havingValue = "true", matchIfMissing = true)
+public class RemoveDruidAdConfig {
+
+    /**
+     * 方法名: removeDruidAdFilterRegistrationBean
+     * 方法描述 除去页面底部的广告
+     * @param properties com.alibaba.druid.spring.boot.autoconfigure.properties.DruidStatProperties
+     * @return org.springframework.boot.web.servlet.FilterRegistrationBean
+     */
+    @Bean
+    public FilterRegistrationBean removeDruidAdFilterRegistrationBean(DruidStatProperties properties) {
+
+        // 获取web监控页面的参数
+        DruidStatProperties.StatViewServlet config = properties.getStatViewServlet();
+        // 提取common.js的配置路径
+        String pattern = config.getUrlPattern() != null ? config.getUrlPattern() : "/druid/*";
+        String commonJsPattern = pattern.replaceAll("\\*", "js/common.js");
+
+        final String filePath = "support/http/resources/js/common.js";
+
+        //创建filter进行过滤
+        Filter filter = new Filter() {
+            @Override
+            public void init(FilterConfig filterConfig) throws ServletException {}
+
+            @Override
+            public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
+                HttpServletRequest httpRequest = (HttpServletRequest) request;
+                HttpServletResponse httpResponse = (HttpServletResponse) response;
+                if (httpRequest.getRequestURI().endsWith("js/common.js")) {
+                    // 获取common.js
+                    String text = Utils.readFromResource(filePath);
+                    // 正则替换banner, 除去底部的广告信息
+                    text = text.replaceAll("<a.*?druid_banner\"></a><br/>", "");
+                    text = text.replaceAll("powered by.*?shrek.wang</a>", "");
+                    httpResponse.setContentType("application/javascript");
+                    httpResponse.setCharacterEncoding("UTF-8");
+                    httpResponse.getWriter().write(text);
+                } else {
+                    chain.doFilter(request, response);
+                }
+            }
+            @Override
+            public void destroy() {}
+        };
+        FilterRegistrationBean registrationBean = new FilterRegistrationBean();
+        registrationBean.setFilter(filter);
+        registrationBean.addUrlPatterns(commonJsPattern);
+        return registrationBean;
+    }
+}